Ceramic films and interfaces: Chemical and mechanical properties. Final report (open access)

Ceramic films and interfaces: Chemical and mechanical properties. Final report

Results are reported in two areas: (1) understanding the mechanism of superplasticity in those that show unusual resistance to intergranular cavitation, and (2) understanding the growth of heteroepitaxial films of oxides by CVD (NiO, TiO{sub 2}).
Date: June 5, 1993
Creator: Raj, R.
Object Type: Report
System: The UNT Digital Library
First principles theory of disordered alloys and alloy phase stability (open access)

First principles theory of disordered alloys and alloy phase stability

These lecture notes review the LDA-KKR-CPA method for treating the electronic structure and energetics of random alloys and the MF-CF and GPM theories of ordering and phase stability built on the LDA- KKR-CPA description of the disordered phase. Section 2 lays out the basic LDA-KKR-CPA theory of random alloys and some applications. Section 3 reviews the progress made in understanding specific ordering phenomena in binary solid solutions base on the MF-CF and GPM theories of ordering and phase stability. Examples are Fermi surface nesting, band filling, off diagonal randomness, charge transfer, size difference or local strain fluctuations, magnetic effects; in each case, an attempt is made to link the ordering and the underlying electronic structure of the disordered phase. Section 4 reviews calculations of electronic structure of {beta}-phase Ni{sub c}Al{sub 1-c} alloys using a version of the LDA-KKR-CPA codes generalized to complex lattices.
Date: June 5, 1993
Creator: Stocks, G. M.; Nicholson, D. M. C. & Shelton, W. A.
Object Type: Article
System: The UNT Digital Library